host - 常用的分析域名查询工具

host命令 是常用的分析域名查询工具，可以用来测试域名系统工作是否正常。

host是一个常用的DNS查询工具，经常用来查询域名、检查域名解析是否正确。

适用范围

RedHat

RHEL

Ubuntu

CentOS

Debian

Deepin

SUSE

openSUSE

Fedora

Linux Mint

Alpine Linux

Arch Linux

语法

host  [选项]  name  [server]

选项

-a         # 查询所有的信息
-c         # 设置查询类型
-C         # 查询完整的SOA记录
-d, -v     # 显示详细过程
-l         # 列表模式
-t         # 选择查询类型：CNAME NS SOA SIG KEY AXFR
-w         # 永久等待
-W         # 设置等待超时

举例

查询域名

[sogrey@bogon ~]$ host www.baidu.com
www.baidu.com is an alias for www.a.shifen.com.
www.a.shifen.com has address 14.215.177.38
www.a.shifen.com has address 14.215.177.39
www.a.shifen.com is an alias for www.wshifen.com.
www.a.shifen.com is an alias for www.wshifen.com.
[sogrey@bogon ~]$ 

查询所有信息

[sogrey@bogon ~]$  host -a www.baidu.com
Trying "www.baidu.com"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11677
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.baidu.com.			IN	ANY

;; ANSWER SECTION:
www.baidu.com.		0	IN	A	14.215.177.38

Received 47 bytes from 192.168.0.1#53 in 12 ms
[sogrey@bogon ~]$